ch 3: This chapter puts humans in our evolutionary context, answering such “who questions” as we need to answer before investigating “how questions.” First, it explains where we fit in terms of broader patterns of primate evolution. Next, it shows how human behavior differs from that of other animals. Finally, it considers how we humans differ from one another. The most important differences among humans are cultural differences. Culture has several distinct properties for which we should expect to find evidence in the prehistoric record. Failing to find such evidence can suggest problems in our methods for investigating human evolution and prehistory.